同仁化学lfoBiotics- Sodium Polysulfide Set货号:SB13| 日本DOJINDO

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lfoBiotics- Sodium Polysulfide Set货号:SB13
SulfoBiotics- Sodium Polysulfide Set
SulfoBiotics- Sodium Polysulfide Set
商品信息
储存条件:4度
运输条件:常温运输

下载说明书
SDS

选择规格:
1set

现货 

 
多硫供体

产品包装
产品概述
生物体内存在含硫烷硫分子的种类
Sodium polysulfide的构造
参考文献

产品包装

Sodium disulfide (Na2S2)  100 mg× 1

Sodium trisulfide (Na2S3)  100 mg× 1

Sodium tetrasulfide (Na2S4)  100 mg× 1

产品概述

最近的研究发现,过硫化物(Persulfide)和多硫化物(Polysulfide)等硫烷硫(Sulfane Sulfur)是生物体内的一种新型信号分子。这一类活性硫烷硫分子可以通过硫化氢释放和储存,并且与蛋白质的硫醇(Thiol)为目标的一系列信号传递(如蛋白质的巯基化等)密切相关,因此受到了广泛关注。不仅如此,过硫化物和多硫化物的还原性甚至高于半胱氨酸(Cysteine)和谷胱甘肽(Glutathione)等生物体内常见的具有还原性的物质,对维持体内的氧化还原平衡也非常重要。

Sodium polysulfide (Na2Sn)是诸多硫烷硫供体中结构最简单的一种,它在水溶液中可以随着pH的变化生成拥有多种结构的多硫化氢(Hydrogen Polysulfide, H2Sn, n≥2)。本产品是专门用于研究过硫化物、多硫化物等活性硫烷硫分子在生物体内相关通路中作用的试剂。

生物体内存在含硫烷硫分子的种类

lfoBiotics- Sodium Polysulfide Set货号:SB13

※生物体内含有硫烷硫的分子种类会随氧化还原而发生变化。

Sodium polysulfide的构造

供体 Sodium disulfide(Na2S) Sodium trisukfide(Na2S3) Sodium tetrasulfide(Na2S4)
构造 Na+-S-SNa+ Na+-S-S-S-Na+ Na+-S-S-SNa+
PKa1 5 4.2 3.8
pKa2 9.7 7.5 6.3
货号 SB02 SB03 SB04

 

※pKa值请参考下面文献:

J. Gun et al., “Electrospray Ionization Mass Spectrometric Analysis of Aqueous Polysulfide Solutions”, Microchim. Acta, 2004, 146, 229

参考文献

1) Y. Kimura, Y. Mikami, K. Osumi, M. Tsugane, J. Oka, and H. Kimura, “Polysulfides are possible H2S-derived signaling molecules in rat brain”, FASEB J., 2013, 27, 2451.
2) S. Koike, Y. Ogasawara, N. Shibuya, H. Kimura, and K. Ishii, “Polysulfide exerts a protective effect against cytotoxicity caused by t-buthylhydroperoxide through Nrf2 signaling in neuroblastoma cells”, FEBS Lett., 2013, 587, 3548.
3) E. R. DeLeon, Y. Gao, E. Huang, M. Arif, N. Arora, A. Divietro, S. Patel, and K. R. Olson , “A case of mistaken identity: are reactive oxygen species actually reactive sulfide species?”, American Journal of Physiology: Regulatory, Integrative and Comparative Physiology ., 2015, 310, (7), 549.
4) D. Delgermuruna, S. Yamaguchia, O. Ichiib, Y. Konb, S. Itoa, and K. Otsuguroa, “Hydrogen sulfide activates TRPA1 and releases 5-HT from epithelioid cells of the chicken thoracic aorta”, Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology., 2016, 187, 43 .
5) S. Koikea, T. Kayamaa, S. Yamamotoa, D. Kominea, R. Tanakaa, S. Nishimotoa, T. Suzukia, A. Kishidab, and Y. Ogasawaraa, “Polysulfides protect SH-SY5Y cells from methylglyoxal-induced toxicity by suppressing protein carbonylation: A possible physiological scavenger for carbonyl stress in the brain”, NeuroToxicology., 2016,55, 13 .

Set of three units of Temperature Stabilizer(Phase Change Material)-24 套装(迷你6.6保温箱+3块24-蓄热板) 品牌:Sanplatec


品牌:Sanplatec
CAS No.:
储存条件:室温
纯度:
产品编号

(生产商编号)

等级 规格 运输包装 零售价(RMB) 库存情况 参考值

WEB28647

1 set 咨询


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产品描述相关资料下载相关产品浏览记录 套装:iP-TEC PREMIUM BOX-mini 6.6+3块24-蓄热板

Toxinometer® ET-6000/E Part 11 set (220-240 VAC) 内毒素分析仪 品牌:Wako


品牌:Wako
CAS No.:
储存条件:室温
纯度:
产品编号

(生产商编号)

等级 规格 运输包装 零售价(RMB) 库存情况 参考值

290-33519

1 set 咨询


* 干冰运输、大包装及大批量的产品需酌情添加运输费用


* 零售价、促销产品折扣、运输费用、库存情况、产品及包装规格可能因各种原因有所变动,恕不另行通知,确切详情请联系上海金畔生物科技有限公司。

产品描述相关资料下载相关产品浏览记录 请联系客服

同仁化学Hampton蛋白结晶试剂盒LCP Sandwich Set| 日本DOJINDO

上海金畔生物科技有限公司代理日本同仁化学 DOJINDO代理商全线产品,欢迎访问官网了解更多信息

上海金畔生物代理Hampton research品牌蛋白结晶试剂耗材工具等,我们将竭诚为您服务,欢迎访问Hampton research官网或者咨询我们获取更多相关Hampton research品牌产品信息。Products > 96 Well Crystallization Plates > Paul Marienfeld > LCP Sandwich Set

LCP Sandwich Set

Applications

  • Crystallization screening of membrane proteins in lipidic mesophase as well as bicelle method and batch method

Features

  • Small volume LCP, bicelle and microbatch crystallization
  • High quality glass optics
  • Excellent drop optics since mesophase bolus is physically sandwiched between two optically clear surfaces eliminating the mesophase / aqueous medium interface and the corresponding roughness
  • Glass plate allows for visualization of microcrystals using birefringence-free examination between crossed polarizers
  • Superhydrophobic glass surfaces
  • Optimized for bright field, UV and fluorescent microscopy
  • Excellent stability, resistant to evaporation

Description

The LCP Sandwich Set consists of a base glass slide and an optimized cover slip. LCP Sandwich Set developed jointly with the renowned Scripps Research Institute in La Jolla, California, USA and is manufactured by Paul Marienfeld (0890003).

The LCP Glass Sandwich Set is a specially designed plate for either automated or manual setting of 96 Lipidic Cubic Phase matrix screening experiments. The plate can also be used for the bicelle method and batch method. The thin (< 2 mm high) plates have exquisite optical properties and are well suited for the detection of microcrystals and for birefringence-free imaging between crossed polarizers. The plates allow for in meso crystallization trials with 50 nanoliters protein/lipid mesophase and 1 microliter precipitant solution per trial.

The 96 well LCP Glass Sandwich Plate consists of a) 127.8 x 85.5 x 1 mm glass base plate with the footprint of an SBS-compliant plate, a 140 µm thick double sticky spacer with 96 punched out holes and b) a 0.2 mm thick glass coverslip. The double sticky spacer is already adhered to the base plate. A brown paper liner covers and protects the top of the double sticky spacer and base plate. The 0.2 mm thick glass coverslip fits over and seals the entire 96 well lower plate. Alternatively a series of twenty-four siliconized 18 x 18 mm No. 1 square cover slides (HR3-152) can be used to seal the entire 96 well lower plate. Each 18 x 18 mm No. 1 cover slide seals 4 wells. Space for a bar code is available at the left end of the plate. Each well can contain 50 nanoliters of cubic phase and 1 microliter of crystallization reagent.

18 x 18 mm No. 1 Siliconized Cover Slides are made from chemically resistant borosilicate glass D 263 M of the first hydrolytic class. The slides are colorless, clear, and suitable for fluorescence microscopy. The slides feature a super hydrophobic surface on both sides. The slides are No. thickness (0.13 ro 0.16 mm). The slides are supplied in a two compartment plastic box, 100 slides per box, 10 boxes per case, 1,000 slides total for HR3-152.

The Tungsten-carbide glass cutter can be used for cutting and removal of the upper coverglass that seals the LCP Sandwich Set. Sold separately.

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Hampton蛋白结晶试剂盒LCP Sandwich Set

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Hampton蛋白结晶试剂盒LCP Sandwich Set
Hampton蛋白结晶试剂盒LCP Sandwich Set
Hampton蛋白结晶试剂盒LCP Sandwich Set
Hampton蛋白结晶试剂盒LCP Sandwich Set
Hampton蛋白结晶试剂盒LCP Sandwich Set

CAT NO

HR3-151

NAME

LCP Sandwich Set

DESCRIPTION

Pack of 20

PRICE

$458.00

cart quote

CAT NO

HR3-152

NAME

18 x 18 mm No. 1 Siliconized Cover Slides, Squares

DESCRIPTION

Case of 10 packs

PRICE

$322.00

cart quote

Support Material(s)

Hampton蛋白结晶试剂盒LCP Sandwich Set HR3-151 LCP Sandwich Set User GuideHampton蛋白结晶试剂盒LCP Sandwich Set HR3-151 LCP Sandwich Set Dimension Drawing

Related Item(S)

  • 4 Inch Soft Rubber Brayer
  • Tungsten Carbide Scribe & Glass Cutter with Replaceable Tips

References

1. Nano-volume plates with excellent optical properties for fast, inexpensive crystallization screening of membrane proteins. Vadim Cherezov and Martin Caffrey. J. Appl. Cryst. (2003). 36, 1372-1377.

2. A robotic system for crystallizing membrane and soluble proteins in lipidic mesophases. Vadim Cherezov, Avinash Peddi, Lalitha Muthusubramaniam, Yuan F. Zheng and Martin Caffrey. Acta Cryst. (2004). D60, 1795-1807 DOI: 10.1107/S0907444904019109.

3. Bicelle crystallization: a new method for crystallizing membrane proteins yields a monomeric bacteriorhodopsin structure. Faham, S. & Bowie, J. U. (2002). J. Mol. Biol. 316, 1-6.

NEBuffer Set 1.1, 2.1, 3.1 + CutSmart 货 号 #B7200SNEB酶试剂 New England Biolabs

上海金畔生物科技有限公司代理New England Biolabs(NEB)酶试剂全线产品,欢迎访问官网了解更多产品信息和订购。

产品资料 – Buffers – Buffers

NEBuffer Set 1.1, 2.1, 3.1 + CutSmart                              收藏

货 号
规 格
价 格(元)
北京库存
上海库存
广州库存
成都库存
苏州库存

#B7200S
5 ml
339.00

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停产通知

 该产品于 2021 年 12 月 15 日停产,替代产品为 NEBuffer 套装 (r1.1、r2.1、r3.1 和 rCutSmart)(NEB #B7030)